Answer:
340 miles
Step-by-step explanation:
From definition of speed, it's distance traveled per unit time
Speed=Distance/time
Making distance the subject
Distance=Speed* time
Substituting speed of 85 miles per hour and time of 4 hours
Distance=85*4=340 miles
Therefore, if the train maintains the same speed, the distance between Sue's house and Kentucky is approximately 340 miles
Answer: -12
Step-by-step explanation:
Answer:

Step-by-step explanation:
solving for dy/dx
multiply the equation out to remove parentheses

now differentiating in terms of x (
)

isolating dy/dx to one side



4n/4n-4 × n-1/n+1
= 4n(n-1)/(4n-4)(n+1)
= (4n^2 - 4n)/(4n^2 + 4n - 4n-4)
= (4n^2 - 4n)/(4n^2 - 4)
= 4(n^2 - n)/4(n^2 - 1)
=(n^2 - n)/(n^2 - 1)
Evaluating
we get 1590
Step-by-step explanation:
We need to evaluate 
Solving:

So, evaluating
we get 1590
Keywords: Solving the expressions
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